Question

End Test
Physics
Q3
A particle is moving in straight line with
initial velocity u and uniform acceleration a.
If sum of distance travelled in 10th second
and 11th second is 80 m, then velocity of
particle after 10 second is
40 m 5-1
80 m 5:1
o
50 m 5-1
Data insufficient
Physics​

Answer 1

Answer:

1/2a(19+21)=80

a=4m/s2

therefore velocity after 10s=at=4.10=40m/s